Sofia, is a little girl with a commoner's background until her mom marries the King and suddenly she is royalty. With the help of the three fairies in charge of the Royal Training Academy, Sofia learns that looking like a princess isn't all that hard but behaving like one must come from the heart.

After an incident which nearly cost Littlefoot's grandmother her life, Littlefoot learns a series of lessons which his species call "Wisdoms". Meanwhile, a trio of dim-witted Beipiaosauruses named Loofah, Doofah and Foobie arrive in the Great Valley and behave in a strange manner towards Littlefoot and the gang. Littlefoot is determined that they learn the "Wisdoms" and the journey to the one place the trio have dreamed of, Berry Valley, begins.

The villains from the popular animated Disney films are gathered at the House of Mouse with plans to take over. Soon, the villains take over the house and kick out Mickey, Donald and Goofy. It's all up to Mickey and his friends to overthrow evil and return the House of Mouse to normal--or as close to normal as it get's.